And yes, another item, right away. I'm on the hunt for a mini-ITX motherboard for use in a living room HTPC, and considering there's so much choice out there, I'm a little confused. Then I realised I have you people to help me out, and, well, one thing led to another.

With "mainstream" I was actually referring to the Llano integrated graphics, which offer about Radeon 5570 equivalent performance. A discrete card does not fit into his case anyway.

And he specifically asked for the "Best" HTPC board. The Atom+Ion, Clarkdale and AM3+ IGP boards are all lacking in one or more departments. The cheapest solution that remains and will fit into the R10-D3 case is Llano.